Completed all tasks (1–13) for Peer Review Assignment with async-awai…

final_project/index.js

@@ -10,9 +10,26 @@ app.use(express.json());
 
 app.use("/customer",session({secret:"fingerprint_customer",resave: true, saveUninitialized: true}))
 
-app.use("/customer/auth/*", function auth(req,res,next){
-//Write the authenication mechanism here
+app.use("/customer/auth/*", function auth(req, res, next) {
+    // 1. Check if session exists and has an access token
+    if (!req.session || !req.session.accessToken) {
+        return res.status(401).json({ message: "Unauthorized: No session token" });
+    }
+
+    const token = req.session.accessToken;
+
+    // 2. Verify JWT token
+    jwt.verify(token, "fingerprint_customer", (err, decoded) => {
+        if (err) {
+            return res.status(403).json({ message: "Forbidden: Invalid token" });
+        }
+
+        // 3. Save decoded info in req.user to use in downstream routes
+        req.user = decoded;
+        next(); // pass control to the next middleware or route handler
+    });
 });
+
 
 const PORT =5000;